Step up to the line with confidence when you lace up the sprint spikes inspired by the world's fastest man — Usain Bolt. Synthetic, one-piece CLARINO Rovenica upper hugs the foot and locks it in place. Achilles notch creates a more comfortable fit through the heel. Microfiber and suede lining for a

Step up to the line with confidence when you lace up the sprint spikes inspired by the world's fastest man — Usain Bolt. Synthetic, one-piece CLARINO Rovenica upper hugs the foot and locks it in place. Achilles notch creates a more comfortable fit through the heel. Microfiber and suede lining for a soft fit and feel. Full-length, eight-spike Pebax plate grips the track and propels you forward. Includes 3/16" pyramid spikes and a wrench.